Mikey
I did consider a simialr home brewed version for the SS1 and even had a pretty chunky multi stage (3?) centrifugal fan but reckoned that I'd need a pretty hefty leccy motor to deliver enough wind at anything above tick-over. and not much spare space under bonnet

There are standard 'nomo-graphs' in desk drawer at work (made up before days of tinternet) that show how much HP is needed to shift wind/water/oil etc , I'll try and look on Monday

I'm assuming this is for the V6 vauxhall? so even bigger leccy needed, just look at the width of a drive belt on a super-charger !!!!

Nomograms, don't you just love 'em...
I had to get the book out; the one I'm looking at relates torque factor to airscrew diameter to engine speed - perhaps I could fit a model aero-engine in front of the carb and get some boost that way..
Merry Christmas to all our readers (as they say).

Nomograms, don't you just love 'em...
I had to get the book out; the one I'm looking at relates torque factor to airscrew diameter to engine speed - perhaps I could fit a model aero-engine in front of the carb and get some boost that way..
Merry Christmas to all our readers (as they say).

yep, gives a fair indication of the figure, might not be accurate to n decimal palces but at least within sptting distance, and also makes sure that you have not typed in a wrong number into the equation, especially important if there are any square or cube factors